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  1. Astrodon - Tru-Balance I-Series - 50mm dia. CRGB Filter

    Astrodon - Tru-Balance I-Series - 50mm dia. CRGB Filter

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!  Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CRGB2-I50R
    $875.00

  2. Astrodon - Tru-Balance E-Series - 50mm dia. CRGB Filter

    Astrodon - Tru-Balance E-Series - 50mm dia. CRGB Filter

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!        Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CRGB2-E50R
    $875.00

  3. Astrodon - Narrowband - 50mm Unmounted H-Alpha 5 nm Filter

    Astrodon - Narrowband - 50mm Unmounted H-Alpha 5 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

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    (48 States)
    Model#: HA5-50R
    $725.00

  4. Astrodon - Narrowband - 50mm Unmounted OIII 5 nm Filter

    Astrodon - Narrowband - 50mm Unmounted OIII 5 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

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    (48 States)
    Model#: OIII5-50R
    $725.00

  5. Astrodon - Narrowband - 50mm Unmounted SII 5 nm Filter

    Astrodon - Narrowband - 50mm Unmounted SII 5 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

    ...
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    (48 States)
    Model#: SII5-50R
    $725.00

  6. Astrodon Narrowband 50mm Unmounted  Red Continuum 5 nm Filter

    Astrodon - Narrowband - 50mm Unmounted Red Continuum 5 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

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    (48 States)
    Model#: REDCON5-50R
    $725.00

  7. Astrodon - Narrowband - 50mm Unmounted H-Alpha 5 nm Square Filter

    Astrodon - Narrowband - 50mm Unmounted H-Alpha 5 nm Square Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

    ...
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    (48 States)
    Model#: HA5-50S
    $875.00

  8. Astrodon Narrowband 50mm Unmounted OIII 5 nm Square Filter

    Astrodon - Narrowband - 50mm Unmounted OIII 5 nm Square Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: OIII5-50S
    $875.00

  9. Astrodon Narrowband 50mm Unmounted SII 5 nm Square Filter

    Astrodon - Narrowband - 50mm Unmounted SII 5 nm Square Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: SII5-50S
    $875.00

  10. Astrodon - Narrowband - 50mm Unmounted Red Continuum 5 nm Square Filter

    Astrodon - Narrowband - 50mm Unmounted Red Continuum 5 nm Square Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: REDCON5-50S
    $875.00

  11. Astrodon 36mm Unmounted Gen2 E-Series LRGB (set of 4)

    Astrodon - 36mm Unmounted Gen2 E-Series LRGB Filters (set of 4)

    Astrodon Tru-Balance RGB filters have revolutionized CCD imaging. Their popularity is due to ease-of-use, high optical throughput and great resulting color for galaxies, star clusters and nebulae.  There are two varieties of Tru-Balance filters - E-Series and I-Series.

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    FREE SHIPPING
    (48 States)
    Model#: LRGB2-E36R
    $675.00

  12. Astronomik - H-Alpha 6nm CCD Filter - 50mm Square Unmounted

    Astronomik - H-Alpha 6nm CCD Filter - 50mm Square Unmounted

    The Astronomik 6nm H-alpha filter is an extremely narrow emission-line filter for CCD photography.

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    (48 States)
    Model#: HA6-50SQ
    $649.95

  13. Astronomik LRGB Type 2 Filter Set 50mm Round Unmounted

    Astronomik - LRGB Type 2 Filter Set - 50mm Round Unmounted

    These filters provide a natural color reproduction of planets, stars, emission- and reflection nebulas.

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    (48 States)
    Model#: LRGB-50R
    $699.95

  14. Astronomik - LRGB Type 2 Filter Set - 50mm Square Unmounted

    Astronomik - LRGB Type 2 Filter Set - 50mm Square Unmounted

    These filters provide a natural color reproduction of planets, stars, emission- and reflection nebulas.

    ...
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    (48 States)
    Model#: LRGB-50SQ
    $849.95

  15. Baader Planetarium - CCD Narrowband-filterset 50x50mm H-alpha 7 / OIII / SII (3mm glass thickness) for Full-Frame-CCD, consisting of 3 Filters: H-alpha 7nm, O III 8.5nm und S II 8nm

    Baader Planetarium - CCD Narrowband-filterset 50x50mm H-alpha 7 / OIII / SII (3mm glass thickness) for Full-Frame-CCD, consisting of 3 Filters: H-alpha 7nm, O III 8.5nm und S II 8nm

    CCD imagers will find Baader's Premium Narrowband CCD passfilters to deliver the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III, and Sulfur-II, with the shortest exposures possible ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FNSET3-SQ50
    $885.00

  16. Baader Planetarium - Set 2" for InterLine-CCD, consisting of 4 Filters 2": H-alpha 35nm, H-beta, O III, S-II, No. 2458380/ 2458426/ 2458436/ 2458431 (with LPFC)

    Baader Planetarium - Set 2" for InterLine-CCD, consisting of 4 Filters 2": H-alpha 35nm, H-beta, O III, S-II, No. 2458380/ 2458426/ 2458436/ 2458431 (with LPFC)

    CCD imagers will find Baader's Premium Narrowband CCD passfilters to deliver the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III, and Sulfur-II, with the shortest exposures possible ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FNSET4-2
    $865.00

  17. Baader Planetarium - CCD Narrowband-filterset  50.8mm H-alpha 7 / OIII / SII (3mm glass thickness) for Full-Frame-CCD, consisting of 3 Filters: H-alpha 7nm, O III 8.5nm and S II 8nm Round

    Baader Planetarium - CCD Narrowband-filterset 50.8mm H-alpha 7 / OIII / SII (3mm glass thickness) for Full-Frame-CCD, consisting of 3 Filters: H-alpha 7nm, O III 8.5nm and S II 8nm Round

    CCD imagers will find Baader's Premium Narrowband CCD passfilters to deliver the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III, and Sulfur-II, with the shortest exposures possible ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FNSET3-RD50
    $760.00

  18. Baader Planetarium - CCD Narrowband-filterset 2" H-alpha 7 / OIII / SII (2mm glass thickness) for Full-Frame-CCD, consisting of 3 Filters: H-alpha 7nm, O III 8.5nm und S II 8nm (with LPFC)

    Baader Planetarium - CCD Narrowband-filterset 2" H-alpha 7 / OIII / SII (2mm glass thickness) for Full-Frame-CCD, consisting of 3 Filters: H-alpha 7nm, O III 8.5nm und S II 8nm (with LPFC)

    CCD imagers will find Baader's Premium Narrowband CCD passfilters to deliver the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III, and Sulfur-II, with the shortest exposures possible ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FNSET3-2
    $665.00

  19. Baader Planetarium - Safety Baader Cool Ceramic Herschel Prism 2" with ClickLock 2" Clamp, VISUAL version, incl 2" filter ND3,0 & Solar-Continuum Filter 2"

    Baader Planetarium - Safety Baader Cool Ceramic Herschel Prism 2" with ClickLock 2" Clamp, VISUAL version, incl 2" filter ND3,0 & Solar-Continuum Filter 2"

    Baader Planetarium - Safety Baader Cool Ceramic Herschel Prism 2" with ClickLock 2" Clamp, VISUAL version, incl 2" filter ND3,0 & Solar-Continuum Filter 2"The New Baader Planetarium 2" Herschel Safety Wedge Solar Prism offers the finest whi ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: HERSCH-V
    $639.00

  20. Baader Planetarium - Safety Baader Cool Ceramic Herschel Prism 2" with ClickLock 2" Clamp, PHOTOGRAPHIC version, incl.4 ND-filter 2" 0,6/0,9/1,8/3,0 & Solar-Continuum Filter 2"

    Baader Planetarium - Safety Baader Cool Ceramic Herschel Prism 2" with ClickLock 2" Clamp, PHOTOGRAPHIC version, incl.4 ND-filter 2" 0,6/0,9/1,8/3,0 & Solar-Continuum Filter 2"

    Baader Planetarium - Safety Baader Cool Ceramic Herschel Prism 2" with ClickLock 2" Clamp, PHOTOGRAPHIC version, incl ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: HERSCH-P
    $719.00

Items 1 to 20 of 74 total

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